PROFESSIONAL 3-WAY AUDIO STEREO CROSSOVER + SUBWOOFER OUTPUT Crossover Range: Subwoofer: 50-250 Hz; Low/High: 70-1000 Hz; Mid/High: 480-7000 Hz Frequency Response: 20Hz-25kHz (1dB) / Low Cut Filters: 30Hz / -3dB, 12dB/Octave Signal-to-Noise Ratio: 80dB / Total Harmonic Distortion: &lt;0.05% Input Impedance: 100k Ohms / Output Impedance: 220 Ohms Unbalanced XLR 1/4" input jacks / Balanced XLR, 1/4" outputs